%0 Journal Article %A Au-Yeung, Yik-Hoi %A Ng, Kam-Chuen %T A remark on a conjecture of Marcus on the generalized numerical range %J Glasgow mathematical journal %D 1983 %P 191-194 %V 24 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005280/ %R 10.1017/S0017089500005280 %F 10_1017_S0017089500005280